Home / 67,986.10-101,979.15-57,925.90

Finding the Fourth Proportional to 67,986.10, 101,979.15 and 57,925.90

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Solution

The fourth proportional to 67,986.10, 101,979.15 and 57,925.90 is: 86,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,986.10 : 101,979.15 = 57,925.90 : x
  2. Step 2: Convert to fraction form
    67,986.10/101,979.15 = 57,925.90/x
  3. Step 3: Cross multiply
    67,986.10x = 101,979.15 × 57,925.90
  4. Step 4: Simplify right side
    67,986.10x = 5,907,234,044.99
  5. Step 5: Solve for x
    x = 5,907,234,044.99/67,986.10
  6. Step 6: Final answer
    x = 86,888.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.